Cottonwood Dam (park)
High HazardPoor ConditionEmergency Action Plan: Yes
Location
| State | Montana |
| County | Park |
| Nearest City | WILSALL |
| River/Stream | COTTONWOOD CREEK |
| Coordinates | 46.03425, -110.68223 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 610 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 3,670 acre-ft |
| Max Storage | 3,670 acre-ft |
| Normal Storage | 1,905 acre-ft |
| Surface Area | 235 acres |
| Drainage Area | 34 sq mi |
| Max Discharge | 217 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | STATE WATER PROJECTS |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 05/01/2024 |
| Emergency Action Plan | Yes |